Eye examining or testing instrument > Subjective type > Including target image projection > Tachistoscope type > Patents

Resources

Home

Browse by:

Browse by Category: Main > Health & Medicine

Class Information
Number: 351/238
Name: Optics: eye examining, vision testing and correcting > Eye examining or testing instrument > Subjective type > Including target image projection > Tachistoscope type
Description: Subject matter under suclass 237 wherein written material or other target-subject matter us projected onto a screen or shown on a panel for controlled short periods of time to test the reading ability or visual acuity of an individual"s eyes.

Patents under this class:

Patent Number	Title Of Patent	Date Issued
7540615	Cognitive training using guided eye movements	Jun. 2, 2009
7267440	Method for recording, assessing and premeditating performance on grapho-motor and writing tasks	Sep. 11, 2007
4789234	Apparatus and method for testing the motion contrast visual sensitivity of an individual	Dec. 6, 1988
4726673	Tachistoscope for presenting stimuli in lateralized form	Feb. 23, 1988
4116547	Tachistoscopic focus control	Sep. 26, 1978
3969020	Automatic refraction apparatus and method	Jul. 13, 1976